PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/17-01:28:00
G01     320.4          12.9                0.2 +/-   29.61       0.6 +/-   29.61  0.040 / 0.030
G08     261.4          16.2               12.6 +/-    1.18      30.4 +/-    1.18  0.030 / 0.030
G10     68.3           57.2               11.5 +/-    1.06      13.4 +/-    1.06  0.150 / 0.240
G11     307.1          21.3                9.5 +/-    2.45      20.3 +/-    2.45  0.120 / 0.260
G14     282.0          69.7                9.5 +/-    0.48      10.0 +/-    0.48  0.220 / 0.210
G18     96.0           33.6               11.4 +/-    2.00      18.6 +/-    2.00  0.180 / 0.320
G27     227.1          12.3               13.8 +/-    1.50      36.5 +/-    1.50  0.030 / 0.040
G31     179.0          33.4               12.3 +/-    0.79      20.1 +/-    0.79  0.040 / 0.040
G32     343.4          72.5               11.1 +/-    0.57      11.6 +/-    0.57  0.050 / 0.080